CFB Site Planning & Design 2 — Questions and Answers
Question 1: When evaluating a potential field site, which soil characteristic is most critical for ensuring adequate drainage on a natural grass athletic field?
- Soil pH level
- Soil percolation rate (Correct answer)
- Organic matter percentage
- Soil compaction index
Correct answer: Soil percolation rate
Soil percolation rate determines how quickly water drains through the soil profile, which is essential for field playability and safety.
Question 2: A field builder is designing a multi-use athletic complex on a sloped site. What is the maximum recommended slope for a natural grass soccer field?
- 0.5%
- 1.5% (Correct answer)
- 3.0%
- 5.0%
Correct answer: 1.5%
A 1.5% maximum slope is the industry standard for natural grass soccer fields to allow drainage while maintaining level playability.
Question 3: Which type of site survey is most critical before beginning field construction to identify underground utilities and obstructions?
- Topographic survey
- Boundary survey
- Subsurface utility engineering (SUE) (Correct answer)
- Environmental impact survey
Correct answer: Subsurface utility engineering (SUE)
Subsurface utility engineering (SUE) locates and maps underground utilities to prevent damage during excavation and construction.
Question 4: In site planning for a sports complex, what is the primary purpose of establishing a 'datum elevation'?
- To determine the legal property boundary
- To serve as a consistent reference point for all elevation measurements (Correct answer)
- To identify the highest flood risk elevation
- To calculate the total earthwork volume
Correct answer: To serve as a consistent reference point for all elevation measurements
A datum elevation provides a consistent reference benchmark from which all other elevations on the project are measured and calculated.
Question 5: When orienting a baseball or softball field, which direction should the pitcher's mound face to minimize sun glare for batters?
- North
- South
- Northeast (Correct answer)
- East-Southeast
Correct answer: Northeast
A northeast orientation places the batter facing northeast, minimizing direct sun exposure during afternoon and evening games.
Question 6: What is the recommended minimum setback distance between the edge of a synthetic turf field and adjacent permanent structures?
- 3 feet
- 6 feet
- 10 feet (Correct answer)
- 15 feet
Correct answer: 10 feet
A 10-foot minimum setback provides a safety buffer zone for players running out of bounds to avoid collision with structures.
Question 7: During the site planning phase, a geotechnical report reveals expansive clay soils. Which design modification is most appropriate?
- Increase topsoil depth
- Install a geotextile fabric layer below the rootzone
- Remove and replace the native soil with imported fill (Correct answer)
- Reduce irrigation system pressure
Correct answer: Remove and replace the native soil with imported fill
Expansive clay soils are best addressed by removing and replacing them with stable, non-expansive fill material to prevent heaving and surface distortion.
CFB Site Planning & Design 2
When evaluating a potential field site, which soil characteristic is most critical for ensuring adequate drainage on a natural grass athletic field?